BRT-400B Hassas Erime Akış İndeksi Test Cihazı

The BRT-400B Hassas Erime Akış İndeksi Test Cihazı is a high-accuracy laboratory extrusion plastometer engineered strictly in accordance with ISO 1133, GB/T 3682, ASTM D1238, Ve ASTM D3364 standards. Designed for plastic raw material producers, compounders, masterbatch manufacturers, and quality control laboratories, it evaluates the melt mass-flow rate (MFR) and thermal rheological behavior of thermoplastics under standardized temperature and load conditions.

Equipped with micro-machined extrusion components, including a standard Φ2.095 ± 0.005 mm tungsten carbide die and a precision Φ9.550 ± 0.025 mm charging barrel, this Eriyik Akış İndeksi Test Cihazı guarantees accurate volumetric and gravimetric flow measurements. Featuring a microcomputer PID temperature control unit operating from 30 °C ila 450 °C (±0.2 °C stability) and an 8-level calibrated load assembly (0.325 kg to 21.600 kilogram), the BRT-400B provides certified melt flow rate characterization for PE, PP, ABS, POM, nylon, polycarbonate, and fluoroplastics.

Melt Flow Index Tester Standards & Compliance

This high-precision melt flow rate apparatus enables quality assurance and research laboratories to conduct standardized polymer flow property testing across major global testing frameworks:

Technological Features of BRT-400B Melt Flow Index Tester

• Wide Temperature Range (30 °C ila 450 °C) & High Thermal Stability

  Driven by a microcomputer PID temperature control system with high-precision sensors, maintaining tight thermal uniformity across the heating chamber within ±0.2 °C.

• Micro-Toleranced Extrusion Barrel & Die Assembly

  Features a precision-ground Φ9.550 ± 0.025 mm charging barrel and a Φ2.095 ± 0.005 mm tungsten carbide discharge die, ensuring friction-free piston motion and repeatable mass flow rate (MFR) data.

• 8-Level Calibrated Standard Load Set (0.325 kg to 21.600 kilogram)

  Includes a complete set of precision-machined weights with less than 0.5% relative manufacturing error, supporting standard test loads from 0.325 kg up to 21.600 kilogram.

• Universal Thermoplastic Material Compatibility

  Engineered to evaluate commodity plastics (PE, PP, PS, ABS) as well as high-temperature engineering resins requiring elevated melt points (PA, PC, POM, fluoroplastics).

• Compact, Low-Maintenance Laboratory Footprint

  Compact chassis design (250 × 360 × 514 mm) with corrosion-resistant internal components, providing anti-vibration stability and long-term baseline consistency without signal drift.

Technical Specifications of Melt Flow Index Tester

Standard Test Load Configurations (8 Levels)

Testing Workflow & Target Applications

Standardized Testing Workflow:

1. Heat the charging barrel to the target test temperature specified by ISO 1133 or ASTM D1238 (e.g., 190 °C for PE or 230 °C for PP).
2. Load the specified mass of plastic granules or powder into the Φ9.550 mm barrel using the charging funnel and pack the material to remove air voids.
3. Insert the piston assembly, allow the required preheating period (typically 4–5 minutes), and load the chosen test weight (e.g., 2.16 kg or 5.0 kilogram) onto the tray.
4. As the molten polymer extrudes through the Φ2.095 mm die, cut extrudates at precise time intervals using the manual or automated cutter.
5. Weigh the cooled extrudate strands on an analytical balance and calculate the Melt Mass-Flow Rate (MFR) in grams per 10 dakika (g/10 min).

Target Customer Applications:

• Polyolefin resin synthesis and compounding plants (PE, PP, PS, EVA).
• Injection molding, extrusion, and blow molding quality control departments.
• Color masterbatch and functional additive additive loading verification.
• Third-party plastics testing laboratories and university materials science institutes.

Melt Flow Index Tester FAQ

Q1: What materials can be measured with the BRT-400B Melt Flow Rate Tester?

A: It is designed for thermoplastics across a wide melt temperature range, including Polyethylene (PE), Polypropylene (PP), Polyoxymethylene (POM), ABS resin, Polycarbonate (PC), Polyamide/Nylon (PA), and Fluoroplastics.

Q2: How are the different test loads configured on this machine?

A: The instrument includes eight distinct standard load levels ranging from 0.325 kg up to 21.600 kilogram. Loads are selected by combining the calibrated weight set (Weights No. 1 through No. 8) onto the piston rod tray.

Q3: Why is high temperature accuracy critical for MFR testing?

A: Thermoplastic melt viscosity is sensitive to thermal changes. A small shift in barrel temperature can cause significant variation in polymer flow velocity. The BRT-400B microcomputer controller maintains strict ±0.2 °C thermal stability to ensure repeatable data across batch runs.